#57815 Password authentication disabled for UltraAuth users

Disabled password authentication for the users registered using
omniauth-ultraauth strategy

app/controllers/concerns/enforces_two_factor_authentication.rb

@@ -23,7 +23,8 @@ module EnforcesTwoFactorAuthentication
 
   def two_factor_authentication_required?
     Gitlab::CurrentSettings.require_two_factor_authentication? ||
-      current_user.try(:require_two_factor_authentication_from_group?)
+      current_user.try(:require_two_factor_authentication_from_group?) ||
+      current_user.try(:ultraauth_user?)
   end
 
   # rubocop: disable CodeReuse/ActiveRecord

app/models/user.rb

@@ -835,11 +835,11 @@ class User < ApplicationRecord
   end
 
   def allow_password_authentication_for_web?
-    Gitlab::CurrentSettings.password_authentication_enabled_for_web? && !ldap_user?
+    Gitlab::CurrentSettings.password_authentication_enabled_for_web? && !ldap_user? && !ultraauth_user?
   end
 
   def allow_password_authentication_for_git?
-    Gitlab::CurrentSettings.password_authentication_enabled_for_git? && !ldap_user?
+    Gitlab::CurrentSettings.password_authentication_enabled_for_git? && !ldap_user? && !ultraauth_user?
   end
 
   def can_change_username?
@@ -919,6 +919,14 @@ class User < ApplicationRecord
     end
   end
 
+  def ultraauth_user?
+    if identities.loaded?
+      identities.find { |identity| Gitlab::Auth::OAuth::Provider.ultraauth_provider?(identity.provider) && !identity.extern_uid.nil? }
+    else
+      identities.exists?(["provider = ? AND extern_uid IS NOT NULL", "ultraauth"])
+    end
+  end
+
   def ldap_identity
     @ldap_identity ||= identities.find_by(["provider LIKE ?", "ldap%"])
   end

changelogs/unreleased/57815.yml

@@ -0,0 +1,5 @@
+---
+title: Enforced requirements for UltraAuth users
+merge_request: 28941
+author: Kartikey Tanna
+type: changed

doc/integration/ultra_auth.md

@@ -71,8 +71,8 @@ To get the credentials (a pair of Client ID and Client Secret), you must registe
 1.  [Reconfigure GitLab]( ../administration/restart_gitlab.md#omnibus-gitlab-reconfigure ) or [restart GitLab]( ../administration/restart_gitlab.md#installations-from-source ) for the changes to take effect if you
     installed GitLab via Omnibus or from source respectively.
 
-On the sign in page, there should now be a UltraAuth icon below the regular sign in form.
+On the sign in page, there should now be an UltraAuth icon below the regular sign in form.
 Click the icon to begin the authentication process. UltraAuth will ask the user to sign in and authorize the GitLab application.
 If everything goes well, the user will be returned to GitLab and will be signed in.
 
-**Note:** GitLab requires the email address of each new user. Once the user is logged in using UltraAuth, GitLab will redirect the user to the profile page where they will have to provide the email and verify the email.
+GitLab requires the email address of each new user. Once the user is logged in using UltraAuth, GitLab will redirect the user to the profile page where they will have to provide the email and verify the email. Password authentication will be disabled for UltraAuth users and two-factor authentication (2FA) will be enforced.

lib/gitlab/auth/o_auth/provider.rb

@@ -40,6 +40,10 @@ module Gitlab
           name.to_s.start_with?('ldap')
         end
 
+        def self.ultraauth_provider?(name)
+          name.to_s.eql?('ultraauth')
+        end
+
         def self.sync_profile_from_provider?(provider)
           return true if ldap_provider?(provider)
 

spec/controllers/application_controller_spec.rb

@@ -289,6 +289,13 @@ describe ApplicationController do
 
         expect(subject).to be_truthy
       end
+
+      it 'returns true if user has signed up using omniauth-ultraauth' do
+        user = create(:omniauth_user, provider: 'ultraauth')
+        allow(controller).to receive(:current_user).and_return(user)
+
+        expect(subject).to be_truthy
+      end
     end
 
     describe '#two_factor_grace_period' do

spec/models/user_spec.rb

@@ -1769,6 +1769,26 @@ describe User do
     end
   end
 
+  describe '#ultraauth_user?' do
+    it 'is true if provider is ultraauth' do
+      user = create(:omniauth_user, provider: 'ultraauth')
+
+      expect(user.ultraauth_user?).to be_truthy
+    end
+
+    it 'is false with othe provider' do
+      user = create(:omniauth_user, provider: 'not-ultraauth')
+
+      expect(user.ultraauth_user?).to be_falsey
+    end
+
+    it 'is false if no extern_uid is provided' do
+      user = create(:omniauth_user, extern_uid: nil)
+
+      expect(user.ldap_user?).to be_falsey
+    end
+  end
+
   describe '#full_website_url' do
     let(:user) { create(:user) }
 
@@ -2807,6 +2827,12 @@ describe User do
 
       expect(user.allow_password_authentication_for_web?).to be_falsey
     end
+
+    it 'returns false for ultraauth user' do
+      user = create(:omniauth_user, provider: 'ultraauth')
+
+      expect(user.allow_password_authentication_for_web?).to be_falsey
+    end
   end
 
   describe '#allow_password_authentication_for_git?' do
@@ -2829,6 +2855,12 @@ describe User do
 
       expect(user.allow_password_authentication_for_git?).to be_falsey
     end
+
+    it 'returns false for ultraauth user' do
+      user = create(:omniauth_user, provider: 'ultraauth')
+
+      expect(user.allow_password_authentication_for_git?).to be_falsey
+    end
   end
 
   describe '#assigned_open_merge_requests_count' do